"Ohio"
The song came of age during a time in which the relationship between both the people and government slowly dissipated. During this song the writers speak to any issue that surges between the people and government of the time period. The issue being information, after the american people learned that their beloved president LBJ had been hiding facts about the war on an a need to know basis this shook the trust between the two groups to the core. When this song says " Tin Soldiers and nixon coming" it's alluding to the fact that the people feel that the coast guard are not true soldiers and should not be treated as so yet, the line "Should have happened long ago." is the call to arms in this peace that is bring the untargeted anger at the government behind on stance. The line " Four dead in Ohio" means what is says which is that four students lay dead in Ohio from Kent state.